📖 ABSTRACT/OVERVIEW
This study investigates the relationship between strategic alliance portfolio management quality, relational rent generation, and innovation outcomes in Nigerian technology firms, providing the first longitudinal empirical analysis of alliance portfolio strategy as an innovation driver in the African tech ecosystem. Nigerian technology firms increasingly manage multiple simultaneous alliances with global technology partners, local content complementors, and government agencies, creating complex portfolio coordination demands that individual alliance management frameworks do not address. A longitudinal panel study design utilises alliance event data, patent and product launch records, and governance quality assessments for 65 technology firms across Lagos and Abuja over nine years, combined with qualitative interviews with 44 alliance directors to theorise portfolio management mechanisms. Dynamic panel regression with instrumental variable controls for alliance selection is applied to the quantitative data. The study demonstrates that alliance portfolio diversity, measured across technology scope, geographic reach, and partner type dimensions, generates relational rents that mediate the portfolio management-innovation relationship. However, portfolio diversity must be managed through coordination capability investments, or complexity costs outweigh relational rent gains, an inverted U-shaped relationship confirmed in the panel data. The study contributes original empirical evidence to alliance portfolio theory, relational view of the firm, and technology management literature, with implications for the strategic development of Nigeria's emerging technology ecosystem. Keywords: alliance portfolio management, relational rents, innovation, technology firms, Nigeria.
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